Article Sept. 17, 2019


Production and handling

Mostarda crude is produced offshore in Angola. Production began April 1, 2019 and is expected to produce ~115kbd. Total is the operator with 30% interest. Its partners are Sonangol (30%), Sonangol Sinopec International (20%), ExxonMobil (15%) and GALP (5%).  Nominal parcel size ranges between 902.5 – 997.5 KB with a 2 day lifting period. 

Load Port Data 

The crude is loaded at the Kaombo Sul FPSO Terminal, (07° 21’54’’ South ;  011°22’30’’ East). 

  • Max summer DWT 350,000 MT
  • Max draft (N/A) metres
  • Nominal loading rate 7,100 m3/hr


Mostarda crude is a non-acidic, light to medium low sulphur crude. It contains 18% of full range naphtha and 28% of middle distillate along with a 20% yield of vacuum residue.

  • API Gravity 28.3
  • Sulfur .933 %


The materials contained in this website are provided to you courtesy of ExxonMobil and are based on a range of data and information. While care has been taken in preparing the materials, ExxonMobil makes no representations, warranties or guarantees as to their accuracy, reliability, quality, correctness or completeness. Each user must make its own determination and judgment on applying any information in this assay. Any and all use of this information shall be the sole responsibility of the user, and the user releases ExxonMobil and its affiliates from any and all claims arising from its use and shall defend and hold ExxonMobil and its affiliates harmless from any third-party claims arising from the user's application or use of any part of the materials.

Related content

Oil rig offshore Angola at sunrise.

Assays available for download

An alphabetically-organized list of downloadable crude oil assays.

Crude oils Article June 18, 2020

ExxonMobil Hadrian oil rig.

Crude oils by region

A list of crude oil by geographic location.

Crude oils Article June 18, 2020

ExxonMobil's Cordona Lake location.

Crude oil blends by API gravity and by sulfur content

A library of ExxonMobil crude oil blends sorted by API gravity and by sulfur content.

Crude oils Article June 18, 2020


Crude oils Article June 18, 2020


Crude oils Article Aug. 6, 2019


Crude oils Article June 27, 2019